42951216 has 80 divisors (see below), whose sum is σ = 138348288. Its totient is φ = 11155200.

The previous prime is 42951211. The next prime is 42951241. The reversal of 42951216 is 61215924.

It is not an unprimeable number, because it can be changed into a prime (42951211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2115 + ... + 9506.

Almost surely, 2^42951216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42951216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69174144).

42951216 is an abundant number, since it is smaller than the sum of its proper divisors (95397072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42951216 is a wasteful number, since it uses less digits than its factorization.

42951216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11650 (or 11644 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 42951216 is about 6553.7177235520. The cubic root of 42951216 is about 350.2072677094.

The spelling of 42951216 in words is "forty-two million, nine hundred fifty-one thousand, two hundred sixteen".